Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory C Landis, O.D.

Optometrist in Lewiston, ID · enumerated 2005 · practices at Gregory C. Landis O.D., Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1447253885

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Registry record

Entity type Individual (Type 1)

Name Gregory C Landis

Credential O.D.

Sex Male

Practice address 3201 5th St, Lewiston, ID, 83501

Phone (208) 743-2020

Fax (087) 433-5832

Enumeration date May 31, 2005

Last updated in NPPES May 23, 2018

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3948/T1027 (OH) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License ODP-100426 (ID) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
000000117385	Other	OH	ANTHEM BC/BS
2201051	Other	OH	UHC
5886015	Other	OH	AETNA
0729082	Medicaid	OH	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Gregory Landis practice?

The practice location on file with NPPES is in Lewiston, ID. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gregory Landis?

The National Provider Identifier (NPI) for Gregory Landis is 1447253885, a Type 1 (individual) record in the CMS NPPES registry.

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Gregory C. Landis O.D., Inc. Optometrist · Lewiston, ID NPI 1821588724

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-23.